Sotto opposes Senate investigation on priest killings

Senate President Vicente Tito Sotto III opposed Senator Risa Hontiveros proposal for a Senate probe on the spate of killings of Catholic priests in the country.
Sotto wondered what laws can be crafted out of the investigation, adding that the investigation would only waste the time of the Philippine National Police, the agency tasked to solve the killings of the members of the clergy.
What will we inquire here? I think the Philippine National Police should be tasked to go after the solution of the c